Convert CSV to JSON
Parse a CSV header and rows into JSON records, choosing the input encoding and delimiter.
- 1Add files
- 2Options
- 3Convert
- 4Save
Preparing the converter…
Supported formats and settings
- Input formats
- CSV
- Output formats
- JSON
- Per-file limit
- Current device memory
- Total selected-file limit
- Estimated by file count and format
- Number of selectable files
- 1–1
Recommended input total: 8 MiB on mobile / 32 MiB on desktop. Low memory can reduce the effective limit.
Your files are not uploaded to a conversion server. A new result is created in your browser.
How to use this tool
- Choose files in CSV format. Maximum files per batch: 1.
- Review Input encoding, Input delimiter, then start processing.
- Download the JSON result and check its content and quality.
What this tool does
- Parse a CSV header and rows into JSON records, choosing the input encoding and delimiter.
- Read CSV input and save the JSON result as a new file.
- Available settings: Input encoding, Input delimiter.
Limitations
- Check header names and delimiter selection. CSV values do not carry a spreadsheet's formatting or formulas.
Frequently asked questions
Convert CSV to JSON — What should I check before using this tool?
Check header names and delimiter selection. CSV values do not carry a spreadsheet's formatting or formulas.
Which files can I choose?
Choose files in CSV format. Maximum files per batch: 1.
How can I adjust the result?
Input encoding, Input delimiter.
Understand the formats
JSON
JSON represents objects, arrays, strings, numbers, booleans and null. Property names use double quotes; comments are not part of standard JSON.
Format JSON for inspection, flatten suitable records into a CSV table, or combine JSONL records into a JSON array.
JavaScript cannot represent every large integer exactly. CSV has no universal type system, so a JSON-to-CSV round trip can change types or nested structure. Keep the source data.
CSV
CSV stores rows of delimited text. Quoted fields can contain commas and line breaks; encoding and header conventions vary between applications.
Use CSV for exchanging a simple table. Select the correct character encoding and inspect the column names before converting to JSON.
Leading zeros, dates and long identifiers can be changed by spreadsheet software when opened. Coverton neutralizes formula-like cells in supported table exports; encoding-only conversion preserves the original text.
When is this useful?
Turn rows and columns into JSON records after checking headers and delimiters. Review how values are represented in the result.
Input and result example
name,count / Coverton,2 → JSON record arrayExamples illustrate the workflow; actual size, support and recognition depend on the source and settings.